llm3-1415926 发表于 2005-1-17 22:01

帮帮忙，谢谢大侠，VB

<P>Private Sub cmdPlot_Click()
XY
On Error Resume Next
Dim x As Double, Y As Double
Randomize
  
        SC.Reset
        SC.AddCode "Function RunThis(X)" &amp; vbCrLf &amp; "RunThis=" &amp; txtEquation &amp; vbCrLf &amp; "End Function"
       For x = -15 To 15 Step 0.001
         Y = SC.Run("runthis", x)
         DoEvents
          Picture1.PSet (x, Y), RGB(250, 0, 0)
          Next x
End Sub</P>
<P>为仕么Y=LOG（X），SQR（X）也有图象（X轴负半轴），请帮忙</P>

USER001 发表于 2005-1-18 10:44

把完整代码发上来

llm3-1415926 发表于 2005-3-1 23:50

<P><b>帮帮忙，跪下谢谢斑竹，VB</b></P><P>Private Function PrintWord(x, Y, Word As String)
With Picture1
.CurrentX = x
.CurrentY = Y
.ForeColor = RGB(0, 0, 255)
End With
Picture1.Print Word
End Function
'定义画点函数
Private Function DrawDot(Px, Py, Color)
Picture1.PSet (Px, Py), Color
End Function
Sub XY() '建立直角坐标系
Picture1.DrawWidth = 1 '设置线条宽度
Picture1.Cls
'设定用户坐标系，坐标原点在Picture1中心
Picture1.Scale (-10, 10)-(10, -10)
Picture1.Line (-10, 0)-(10, 0), RGB(0, 0, 255)
Picture1.Line -(9.5, 0.5), RGB(0, 0, 255)
Picture1.Line (10, 0)-(9.5, -0.5), RGB(0, 0, 255)
Picture1.ForeColor = RGB(0, 0, 255)
Picture1.Print "X"
'画 X 轴
Picture1.Line (0, -10)-(0, 10), RGB(0, 0, 255)
Picture1.Line -(0.5, 9.5), RGB(0, 0, 255)
Picture1.Line (0, 10)-(-0.5, 9.5), RGB(0, 0, 255)
Picture1.Print "Y"
'画 Y 轴
For lin = -9 To 9
Picture1.Line (lin, 0)-(lin, 0.25)
wor = PrintWord(lin - 0.5, -0.5, Str(lin))
Picture1.Line (0, lin)-(-0.25, lin)
If lin &lt;&gt; 0 Then
wor = PrintWord(-0.9, lin, Str(lin))
End If
Next lin
Picture1.DrawWidth = 1
End Sub
Private Sub cmdPlot_Click()
XY
On Error Resume Next
Dim x As Double, Y As Double
Randomize
  
        SC.Reset
        SC.AddCode "Function RunThis(X)" &amp; vbCrLf &amp; "RunThis=" &amp; txtEquation &amp; vbCrLf &amp; "End Function"
       For x = -15 To 15 Step 0.001
         Y = SC.Run("runthis", x)
         DoEvents
          Picture1.PSet (x, Y), RGB(250, 0, 0)
          Next x
End Sub</P><P>Private Sub Command2_Click()
XY
End Sub</P><P>Private Sub Command3_Click()
End
End Sub</P><P>
Private Sub Form_Load()
Me.Caption = "美丽曲线——山东省商河一中路来民"
Me.Show
Me.AutoRedraw = True
XY
End Sub
控件</P><P>为仕么Y=LOG（X），SQR（X）也有图象（X轴负半轴）， SC为MS.SCRIPT.control请帮忙,谢谢斑竹,跪谢！！！</P>

秋天的风儿 发表于 2011-9-23 15:19

呵呵，看大家评论如何











static/image/common/sigline.gif
大家好,能交朋友嘛？ok0633.com

ealx0yJu 发表于 2012-10-13 03:38

我看不错噢 谢谢楼主！
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